In today's rapidly evolving Internet of Things (IoT) era, various smart devices are emerging at an unprecedented pace. They are increasingly integrated into our daily lives, from smart homes to smart cities, industrial monitoring to healthcare. IoT technology is transforming the world at an extraordinary speed. However, with the proliferation of IoT devices, issues related to electromagnetic interference and transient voltage surges are becoming more pronounced. Among these challenges, the SMAJ36CA transient voltage suppression diode stands out with its unique features, making it a key component in protecting IoT devices from transient voltage damage.

The SMAJ36CA is a bidirectional transient voltage suppression (TVS) diode specifically designed to address the transient overvoltage that can occur in circuits. Its reverse working voltage (Vrwm) is 36V, meaning that under normal operating conditions, the SMAJ36CA allows voltage up to 36V to pass through without conducting, ensuring the normal operation of the circuit. This feature plays a critical role in key areas of IoT devices, such as power inputs, signal lines, and data lines, effectively isolating normal voltage from potential transient overvoltages and providing the first line of defense for the equipment.

Slkor Transient Protection Diode SMAJ36CA product photo

When a transient voltage that exceeds the reverse working voltage appears in the circuit, the SMAJ36CA's breakdown voltage characteristic becomes particularly important. The breakdown voltage range is set between 40V and 44.2V, which means that once the voltage surpasses this threshold, the SMAJ36CA will quickly conduct, diverting the overvoltage to the ground and thus protecting sensitive electronic components from damage. This rapid response capability is critical in preventing transient voltage surges caused by lightning, electrostatic discharge (ESD), power fluctuations, and other sources, which can easily damage fragile components like microprocessors and sensors in IoT devices.

Slkor Transient Protection Diode SMAJ36CA specification

In addition to precise control of the breakdown voltage, the SMAJ36CA features a very low reverse leakage current (Ir) of just 5μA, ensuring that the diode consumes minimal current at low voltages, further reducing device power consumption and extending battery life. This is a significant advantage for IoT devices that rely on limited power sources.

Parameters of Slkor Transient Protection Diode SMAJ36CA

In the face of transient overvoltage surges, the SMAJ36CA can handle peak pulse current (Ipp@10/1000μs) up to 6.9A, meaning it can absorb and dissipate large amounts of current in a very short time, effectively suppressing voltage spikes. Its maximum clamping voltage is limited to 58.1V, ensuring that even under the harshest transient conditions, the voltage within the circuit does not rise to a level that could damage the components. This feature greatly enhances the survival and stability of IoT devices in harsh environments.

Additionally, the SMAJ36CA’s peak pulse power (Ppp@10/1000μs) reaches 400W, which means it can maintain excellent performance and resist damage even when subjected to high-energy transient pulses, providing continuous and reliable protection for IoT devices. This feature is especially crucial for IoT devices deployed outdoors or in harsh industrial environments, where they are more likely to be affected by extreme weather conditions such as lightning.

In conclusion, the SMAJ36CA transient voltage suppression diode, with its bidirectional polarity, precise breakdown voltage control, ultra-low reverse leakage current, high peak pulse current handling capability, and powerful peak pulse power, has become an indispensable protective component in IoT devices. It not only effectively protects devices from transient voltage surges but also helps reduce power consumption and extend the lifespan of the devices while ensuring their stable operation. As IoT technology continues to advance, the SMAJ36CA and similar products will continue to play an irreplaceable role in safeguarding the safe and reliable operation of IoT devices, contributing to the development of a smarter, safer, and more efficient IoT ecosystem.

About Slkor：

Slkor has research and development offices in Busan, South Korea, Beijing, China, and Suzhou, China. Most of the wafer manufacturing and packaging and testing are carried out within China. The company employs and collaborates with individuals and organizations worldwide, with a laboratory for product performance and reliability testing and a central warehouse located at its headquarters in Shenzhen. Slkor has filed for over a hundred invention patents, offers more than 2,000 product models, and serves over ten thousand customers globally. Its products are exported to countries and regions including Europe, the Americas, Southeast Asia, and the Middle East, making it one of the rapidly growing semiconductor companies in recent years. With well-established management systems and streamlined workflows, Slkor has rapidly enhanced the brand awareness and reputation of its "SLKOR" brand through its outstanding quality and standardized services. Its product range includes three major series: diodes, transistors, and power devices, with recent introductions of new products such as Hall elements and analog devices, expanding its presence in sensors, Risc-v microcontrollers, and other product categories.